I don't know that any ozeki would have used henka against Bart not this nor last basho.
Hakuho did it last basho against Baruto.
What is wrong with henka? It's allowed so dont flame it nonstop!
Punching someone in the balls is also "allowed", but it's just something you don't do to another man.
Baruto's bout today: http://www.nuclear.pri.ee/sumo/Natsu_Day2_...Tochinohana.wmv
He started well with pushing Tochinohana backwards but then Tochinohana was able to break Baruto's grip and started to push him out. Baruto tried to throw Tochinohana but that didn't come out so Tochinohana was able to push Bart out of the ring.